Could end up a larger yorkie maybe..I think you triple the weight at 8 weeks and double the weight at 12 weeks to get an estimate of the adult weight..this is a good and pretty accurate imo Puppy growth chart..I used this and it was accurate for my Pixie..I got her at 14 weeks old and she weighed 1lb 8oz...she's now 3lbs at 10 months.
Yorkshire Terrier Puppy Growth/Weight Chart